1. Aim: How do we use scientific Notation? It's Not Science Fiction...It's Scientific Notation! Scientific Notation

2. 1) The Formula N X 10 ℮ N= any number between 1 and 10 E= a positive or negative exponent. This tells us how many places to move the decimal.

3. 2) Converting scientific notation into standrard notation 4.6 X 10 9 If the exponent is positive, move the decimal over that many places to the right 4,600,000,000.0

4. Practice continued 3.1 X 10 -3 If the exponent is negative, move the decimal over that many places to the left 0.0031 The negative symbol lets you know things are going to get small.

5. 3) Converting standard notation into scientific notation If your number is greater than 1, your exponent will be positive Move the decimal to the left Ex. 543.0 = 5.43 X 10 2 If your number is less than 1, your exponent will be negative Move the decimal to the right Ex. 0.0054 = 5.4 X 10 -3

6. Convert the following… 2.25 X 10 -3.00225 7.5 X 10 5 750,000

7. Convert the following… 1,500,000 1.5X10 6.000525 5.25X10 -4